package com.swift.utils;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Paint;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;

public class GlideCircleTransform extends BitmapTransformation {
	 public GlideCircleTransform(Context context) {
	  super(context);
	 }

	 @Override
	 protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
	  return circleCrop(pool, toTransform);
	 }

	 private static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
	  if (source == null) return null;
	  int size = Math.min(source.getWidth(), source.getHeight());
	  int x = (source.getWidth() - size) / 2;
	  int y = (source.getHeight() - size) / 2;
	  // TODO this could be acquired from the pool too
	  Bitmap squared = Bitmap.createBitmap(source, x, y, size, size);
	  Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);
	  if (result == null) {
	   result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);
	  }
	  Canvas canvas = new Canvas(result);
	  Paint paint = new Paint();
	  paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
	  paint.setAntiAlias(true);
	  float r = size / 2f;
	  canvas.drawCircle(r, r, r, paint);
	  return result;
	 }

	 @Override
	 public String getId() {
	  return getClass().getName();
	 }
	}
